Author
Topic: leaky keg top (Read 2360 times)

I have 1 corny keg that is giving me fits. it seems like it is pressurized and then there is a slow leak of CO2. i have tried 3 or 4 other keg lids on this one keg. is there a lube or sealant that i can use to seal this thing?

that being said, sometimes a keg lid just doesn't want to seat properly. what i've done on kegs that just don't want to seal is put your pressure up to 30 or 40 psi and pop on the gas in connector. the added pressure will usually pop the o ring into place. if that still doesn't work, pull up on the lid and wiggle it while it is under pressure.

Have you found the actual source of the leak yet? You say top but do you know the specific location?

If you have some star san spray it on all the connections. On the posts at the base and on top (the poppets), around the rim of the lid, and on the pressure relief valve (if it has one). Charge it to 30 psi. You will see it bubbling where it leaks. Then you can diagnose the problem better. There are many things that could be causing the problem, so you need to narow it down.

Could be a bad poppet, post not tightened down enough, bad or not lubricated o-ring, loose or worn out pressure release valve, or a dent in the lid itself.

Ditto. Diagnose the problem before fixing it.If the lid is leaking you can "adjust" the corny with a small crescent wrench.If the poppet is leaking you might have the wrong type of poppet or it has some nicks in it.

Have you found the actual source of the leak yet? You say top but do you know the specific location?

If you have some star san spray it on all the connections. On the posts at the base and on top (the poppets), around the rim of the lid, and on the pressure relief valve (if it has one). Charge it to 30 psi. You will see it bubbling where it leaks. Then you can diagnose the problem better. There are many things that could be causing the problem, so you need to narow it down.

Could be a bad poppet, post not tightened down enough, bad or not lubricated o-ring, loose or worn out pressure release valve, or a dent in the lid itself.

Take an old car tire innertube and cut it so that youhave about an 8 inch long cross section forming a rubber cylinder.

Stretch this rubber sleeve over the top of the Keg and pullit down past the hand holds...clear down to the metal section.Set the keg into a liquid catch basin of some type...then fill the top with water....you will be able to see your leak.